1551145413 has 8 divisors (see below), whose sum is σ = 2124091168. Its totient is φ = 1006148304.

The previous prime is 1551145411. The next prime is 1551145429. The reversal of 1551145413 is 3145411551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1551145413 - 2¹ = 1551145411 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1551145411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6987031 + ... + 6987252.

It is an arithmetic number, because the mean of its divisors is an integer number (265511396).

Almost surely, 2^1551145413 is an apocalyptic number.

It is an amenable number.

1551145413 is a deficient number, since it is larger than the sum of its proper divisors (572945755).

1551145413 is a wasteful number, since it uses less digits than its factorization.

1551145413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13974323.

The product of its digits is 6000, while the sum is 30.

The square root of 1551145413 is about 39384.5834432713. The cubic root of 1551145413 is about 1157.5795280815.

Adding to 1551145413 its reverse (3145411551), we get a palindrome (4696556964).

The spelling of 1551145413 in words is "one billion, five hundred fifty-one million, one hundred forty-five thousand, four hundred thirteen".